Common Peripheral Driver Guide

UART

• Corresponding node: /dev/ttyMSM0
• Get information

stty -F /dev/ttyMSM0

• Set baud rate

stty -F /dev/ttyMSM0 115200

• Read

cat /dev/ttyMSM0

• Write

echo "test" > /dev/ttyMSM0

I2C

• Scan devices

i2cdetect -y 2

• Read register 0x00 from device 0x50

i2cget -y 2 0x50 0x00

• Write value 0xFF to register 0x01 of device 0x50

i2cset -y 2 0x50 0x01 0xFF